CN112091696B - Surface processing device and shaft processing technology for motor shaft of soybean milk machine - Google Patents

Abstract

The application relates to a surface processing device and a shaft processing technology of a motor shaft of a soybean milk machine, relating to the field of high-precision transmission part processing and comprising a case, a chuck, a driving motor, a cutting tool, a tool rest, a third hydraulic cylinder, a bar material conveying mechanism, a movable plate and a case door; the bar conveying mechanism comprises a feeding box and a second hydraulic cylinder, wherein the feeding box is provided with a feeding port, and bars discharged through the feeding port are aligned with the ejection direction of a piston rod of the second hydraulic cylinder; when the driving motor drives the chuck to rotate, the arrangement position of the driving motor is staggered with the center of the chuck; the movable plate is fixedly connected with a bracket, the bracket is fixedly connected with an arrangement ring, and the center of the arrangement ring is aligned with the center of the chuck; a plurality of clamping cylinders are fixedly connected to the arrangement ring. This application has the effect that improves automatic processing degree and improve axle machining efficiency.

Description

Surface processing device and shaft processing technology for motor shaft of soybean milk machine

Technical Field

The application relates to the field of high-precision transmission part machining, in particular to a surface machining device and a shaft machining process for a motor shaft of a soybean milk machine.

Background

The existing soymilk makers cut food materials and make drinks by driving a crushing blade through a motor, and the motor rotates through a driving shaft so as to drive the crushing blade to crush the food materials. Wherein, the motor shaft is generally turned out by a numerical control lathe during the manufacturing.

The existing process scheme for processing the shaft of the soybean milk machine comprises the steps of blanking, rough turning, semi-finish turning, thread rolling, milling, knurling and grinding, wherein during processing, a shaft to be processed is clamped in a chuck-tip mode, and on the one hand, the shaft needs to be manually clamped.

When actual axle processing, generally can choose for use cylindrical rod as raw and other materials, then arrange the rod on numerical control lathe, block the rod through the chuck, then the chuck drives the rod and rotates, cuts out required axle spare through the cutter. In actual rod chooseing for use, there is certain defect in the surface of rod, and in order to eliminate the defect, the staff generally can install the rod on the chuck, through the mode of cutting, handles the surface of rod, eliminates the cancellation on rod surface. However, in the process of processing a large amount of shaft members, each time a worker treats the surface of a bar, the bar needs to be mounted on the chuck, and only one bar can be treated in each treatment, which results in low treatment efficiency.

Disclosure of Invention

In order to shorten the time of handling the rod surface, improve the holistic machining efficiency of axle, this application provides a surface machining processing apparatus and axle processing technology of soybean milk machine motor shaft.

First aspect, the application provides a surface machining processing apparatus of soybean milk machine motor shaft, adopts following technical scheme:

a surface processing device for a motor shaft of a soybean milk machine comprises a case, a chuck arranged in the case, a driving motor for driving the chuck to rotate, a cutting tool for cutting a bar, a tool rest used as a mounting position of the cutting tool, a moving plate used as a mounting position of the tool rest, a third hydraulic cylinder for pushing the tool rest to move towards the chuck direction and a bar conveying mechanism for conveying the bar into the chuck; the case is provided with a case door, the case door faces the movable plate, and the moving direction of the movable plate and the case door are in the same straight line;

the rod conveying mechanism comprises a feeding box for containing rods and a second hydraulic cylinder for pushing the rods in the feeding box to the center of the chuck and clamping the rods by the chuck, a feeding port for discharging the rods in the feeding box is formed in the feeding box, and the rods discharged through the feeding port are aligned with the ejection direction of a piston rod of the second hydraulic cylinder;

when the driving motor drives the chuck to rotate, the arrangement position of the driving motor is staggered with the center of the chuck;

the movable plate is fixedly connected with a bracket, the bracket is fixedly connected with an arrangement ring, and the center of the arrangement ring is aligned with the center of the chuck;

the arrangement ring is fixedly connected with a plurality of clamping cylinders, and the ejection directions of piston rods of the clamping cylinders face to the center of the arrangement ring; the arrangement ring is arranged between the tool holder and the chuck.

Through adopting above-mentioned technical scheme, carry the rod to chuck department continuously through pay-off box together with second pneumatic cylinder, staff's adjustment chuck presss from both sides the rod tightly, then the staff cuts the rod of chuck centre gripping, and after the cutting finishes, the staff only need adjust the elasticity of chuck, use die clamping cylinder to press from both sides the rod tightly in arranging the ring, and along with the removal of movable plate, make rod and chuck separately, follow-up new rod promotes being in arranging the rod in the ring, make the rod fall and keep in on the movable plate, the staff can be through opening the chamber door, once only take out many rods, and the staff only need adjust the elasticity of chuck in rod cutting process. Through the automatic bar that carries, the staff only need tighten the chuck just can accomplish arranging of bar fast, conveniently handles and mass production processing axle spare the surface of bar, has improved production efficiency.

Preferably, the box bottom of the feeding box is formed by fixedly connecting a horizontal plane and an inclined plane, and the box opening of the feeding box is arranged on the upper side of the inclined plane.

Through adopting above-mentioned technical scheme, be convenient for put into the rod in the pay-off box and discharge from the pay-off mouth.

Preferably, an accommodating groove for accommodating the feeding box is formed in the upper surface of the case in a penetrating manner.

By adopting the technical scheme, the bar discharged from the containing groove is easier to align with the center of the arrangement ring.

Preferably, the bar conveying mechanism further comprises a feeding plate arranged in the case and connected with the lower side of the feeding box in a sliding manner, and a first hydraulic cylinder fixedly connected in the case and used for pushing the feeding plate; the feeding plate is horizontally arranged, and a receiving groove is formed in the upper surface of the feeding plate.

Through adopting above-mentioned technical scheme, use the delivery sheet to send the rod to align with the piston rod of second pneumatic cylinder, and use first pneumatic cylinder control delivery sheet to slide, realize the intermittent type of rod and carry in the pay-off box.

Preferably, the moving plate is fixedly connected with a containing box.

Through adopting above-mentioned technical scheme, be convenient for keep in and fall on the rod on the movable plate.

Preferably, the containing box is provided with a partition plate, the partition plate is provided with a through hole in a penetrating manner, and a gap is reserved between the partition plate and the bottom of the containing box.

Through adopting above-mentioned technical scheme, when cutting the rod, partial cutting bits and rod can together fall into holding the case, and wherein, the cutting bits passes the through-hole, falls on the downside of baffle for the rod separates with the cutting bits, makes things convenient for the staff to take out the rod.

Preferably, the driving motor drives the chuck to rotate in a belt transmission mode, and the chuck is provided with a wheel groove.

Through adopting above-mentioned technical scheme for chuck pivoted is more steady.

Preferably, the upper surface of the housing is provided with an exposure groove for exposing the chuck and the cutting tool.

Through adopting above-mentioned technical scheme, the staff of being convenient for adjusts the chuck.

Preferably, a supporting plate is arranged in the case, the supporting plate is fixed on the moving plate through a supporting plate, the arrangement position of the supporting plate is located on one side, away from the second hydraulic cylinder, of the chuck, the arrangement height of the supporting plate is the same as that of the receiving groove, and the feeding plate is in contact with the chuck.

Through adopting above-mentioned technical scheme, the layer board carries out the auxiliary stay to the rod, improves the stability of rod when the rod is cut.

In a second aspect, the application provides a processing technology of a motor shaft of a soybean milk machine, which adopts the following technical scheme:

a soybean milk machine motor shaft processing technology comprises the following steps:

s1, selecting a bar;

selecting 45 steel bars according to the diameter size;

s2, surface treatment;

processing the surface of the bar by using a surface processing device to cut the defects on the surface of the bar;

s3, milling and rough machining:

firstly, a large amount of excess materials of a bar subjected to surface treatment are cut off by milling, the bar is processed into blanks in a mode of dividing the bar into different amounts, and a small amount of excess materials are left;

s4, heat treatment:

placing the rough blank subjected to the milling rough machining process into a heating furnace, slowly heating the rough blank to 500 ℃ after a period of time, then heating the rough blank to about 650 ℃ at a heating rate of 100 ℃ per hour, keeping the temperature difference of each area in the heating process in the furnace to be not more than 40 ℃, preserving heat in the furnace for 3-5 hours, and finally cooling the rough blank to 200 ℃ in a closed furnace at a cooling rate of 50 ℃/hour; thereby completing the heat treatment process of the bar;

s5, forming and grinding:

clamping the blank on a grinding clamp of a grinding machine, and grinding by fixing or continuously changing the position to obtain a required shape;

s6, wire cutting processing:

placing the rod material subjected to grinding forming on a wire cut electric discharge machine for wire cutting machining, and continuously performing pulse discharge through the wire cut electric discharge machine to cut a motor shaft with a shape and a size required by a blank;

s7, forming and milling:

placing the bar subjected to the wire cutting process on a common milling machine, and processing the bar into a required shape and size on the surface of a blank by taking the rotary motion of a milling cutter as the main motion and the movement of the milling cutter of a motor shaft as the feed motion;

s8, numerical control turning:

the bar subjected to the milling process is placed on a numerical control lathe for turning, so that the shape and size of the required motor shaft are further improved;

s9, numerical control milling:

the motor shaft is finally processed through numerical control milling, and the processing procedures which cannot be performed by common milling are further completed, so that the motor shaft can meet all shape requirements and size;

s10, electric spark forming processing: etching the surface of the motor shaft through pulse discharge, and finishing final machining on places which cannot be milled by a common lathe and a milling machine;

s11, size inspection:

and (4) measuring the size of the processed motor shaft, and storing and delivering the motor shaft to leave a factory when all data meet the required requirements.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the bar conveying mechanism, the bar can be continuously placed at the clamping position of the chuck to be clamped, and compared with the manual installation of the bar by workers, the automatic feeding saves the installation time of the workers;

2. the bar on the chuck can be automatically taken down by arranging the arrangement ring and the clamping cylinder;

3. through the arrangement of the containing box, the cut bars can be temporarily stored by workers conveniently;

4. through setting up the layer board, carry out the auxiliary stay to the rod, stability when improving the rod cutting.

Drawings

FIG. 1 is a schematic view of a surface treatment processing apparatus in this embodiment;

FIG. 2 is a schematic view of the structure of the feeding cassette of this embodiment;

FIG. 3 is a schematic view of the interior of the housing of the surface treatment processing apparatus according to the present embodiment;

FIG. 4 is a schematic view of the connection between the driving motor and the chuck in this embodiment;

FIG. 5 is a schematic view of the present embodiment with the clamp cylinder disposed on the deployment ring;

FIG. 6 is a schematic structural view of a partition board disposed inside the storage box in this embodiment;

FIG. 7 is a schematic view of a motor shaft of the washing machine in the present embodiment;

fig. 8 is a schematic view of the shaft processing process in this embodiment.

Description of reference numerals: 1. a chassis; 2. a feeding box; 3. a feed port; 4. accommodating grooves; 5. a feeding plate; 6. a first hydraulic cylinder; 7. a support table; 8. a receiving groove; 9. a second hydraulic cylinder; 10. a drive motor; 11. a chuck; 12. exposing the groove; 13. moving the plate; 14. a third hydraulic cylinder; 15. a tool holder; 16. a support plate; 17. a support plate; 18. a support; 19. arranging a ring; 20. a clamping cylinder; 21. a clamping block; 22. a containing box; 23. a partition plate; 24. and a through hole.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

The embodiment of the application discloses a surface processing device of a motor shaft of a soybean milk machine. Referring to fig. 1, the surface processing device includes a bar conveying mechanism, a clamping mechanism, a cutting mechanism, and a temporary storage mechanism for temporarily storing the cut bars, which are disposed on a chassis 1.

Referring to fig. 1 and 2, the bar conveying mechanism includes a feeding box 2 fixedly connected to an upper surface of the chassis 1, a box bottom of the feeding box 2 is formed by fixedly connecting a horizontal plane and an inclined plane, a box opening of the feeding box 2 is arranged on an upper side of the inclined plane, and the inclined plane is higher than the horizontal plane, wherein a horizontal portion is located at a position of the horizontal plane, and an inclined portion is located at a position of the inclined plane. The worker can put a plurality of rods to be processed into the feeding box 2 in parallel, slide down onto the horizontal portion via the inclined portion, and accumulate the rods at the horizontal portion.

In addition, a housing groove 4 is opened on the upper surface of the cabinet 1, and the feed cassette 2 is disposed in the housing groove 4. And the horizontal portion of the feeding cassette 2 is disposed inside the cabinet 1. Run through on the horizontal part of pay-off box 2 and seted up pay-off mouth 3, the length of pay-off mouth 3 sets up to be greater than the length of putting into the rod in pay-off box 2 for when the rod that gets into in pay-off box 2 was in slide horizontal part department, can follow pay-off mouth 3 discharge pay-off box 2.

Referring to fig. 1 and 3, a horizontally arranged feeding plate 5 is installed at the lower side of the feeding box 2, the upper surface of the feeding plate 5 is in contact with the bottom surface of the horizontal part of the feeding box 2, and the feeding plate 5 is connected with the feeding box 2 in a sliding manner. Wherein, fixedly connected with first pneumatic cylinder 6 in quick-witted case 1, the piston rod fixed connection of first pneumatic cylinder 6 is on pay-off board 5, and the pop-up direction of piston rod on first pneumatic cylinder 6 is the same with the horizontal direction that gets into the gliding of bar in pay-off box 2. A support table 7 for supporting the feed plate 5 is provided in the casing 1. A receiving groove 8 is formed in the feed plate 5, and the opening direction of the receiving groove 8 faces the feed box 2. Along with popping out of the piston rod of the first hydraulic cylinder 6, the feeding plate 5 is pushed by the first hydraulic cylinder 6, and the receiving groove 8 on the feeding plate 5 can be aligned with the feeding port 3 on the feeding box 2, so that the bar material falls into the receiving groove 8 through the feeding port 3. And along with the continuation of popping out of first pneumatic cylinder 6 piston rod, can let receiving groove 8 on the delivery sheet 5 misplace with pay-off mouth 3 of pay-off box 2 to realize the intermittent type of bar and discharge in the pay-off box 2.

The clamping mechanism comprises a second hydraulic cylinder 9 fixedly connected in the machine case 1, the arrangement height of a piston rod of the second hydraulic cylinder 9 is the same as that of the receiving groove 8 on the feeding plate 5, and the ejecting direction of the piston rod of the second hydraulic cylinder 9 is the same as the length direction of the receiving groove 8. When the piston rod of the first hydraulic cylinder 6 is ejected to the receiving groove 8 on the material feeding plate 5 and the arrangement direction of the piston rod of the second hydraulic cylinder 9 is aligned, the piston rod of the first hydraulic cylinder 6 stops ejecting.

A driving motor 10 (see fig. 4) and a chuck 11 driven by the driving motor 10 to rotate are further installed in the casing 1, the chuck 11 is selected from a three-jaw chuck or a four-jaw chuck, in this embodiment, a three-jaw chuck is selected, and the center of the chuck 11 is aligned with the ejecting direction of the piston rod of the second hydraulic cylinder 9. When the piston rod of the first hydraulic cylinder 6 stops ejecting, the piston rod of the second hydraulic cylinder 9 ejects, pushing the bar in the receiving groove 8 into the chuck 11. An exposure groove 12 is opened on the upper surface of the cabinet 1, the chuck 11 is exposed in the exposure groove 12, and then a worker can tighten the chuck 11 using a screwdriver so that the chuck 11 clamps the bar.

Referring to fig. 3 and 4, the supporting table 7 supports the chuck 11, and the driving motor 10 drives the chuck 11 to rotate through gear transmission or belt transmission, in this embodiment, the driving motor 10 drives the chuck 11 to rotate through belt transmission. A pulley groove for connecting a belt is formed in the chuck 11.

Referring to fig. 1 and 3, the cutting mechanism includes a moving plate 13 disposed inside the casing 1, universal wheels are mounted on a lower surface of the moving plate 13, the moving plate 13 is disposed on the bottom of the casing 1, and the moving plate 13 is disposed on a side of the chuck 11 facing away from the second hydraulic cylinder 9. A door is provided on the cabinet 1 on a side facing the moving plate 13. A third hydraulic cylinder 14 for driving the moving plate 13 to move forward or backward in a reciprocating manner toward the chuck 11 is fixedly connected to the case 1, and a piston rod fixing plate of the third hydraulic cylinder 14 is connected to the moving plate 13. A tool holder 15 is fixedly connected to the moving plate 13, and a cutting tool is attached to the tool holder 15.

After the chuck 11 holds the bar, the third hydraulic cylinder 14 controls the moving plate 13 to move towards the chuck 11, so that the cutting tool on the tool holder 15 contacts with the bar, and then the cutting tool cuts the bar along with the rotation of the chuck 11 and the advance of the moving plate 13, so as to cut off the surface layer of the bar, and further remove the defects on the surface of the bar. After the removal is complete, the plate 13 is returned to its original position and the bar is removed from the chuck 11 by the worker.

Wherein, through setting up rod conveying mechanism, can be constantly put the rod and press from both sides tightly in the tight department of clamp of chuck 11, compare in staff's manual installation rod, staff's installation time has been saved in automatic feeding.

In addition, in the cutting process, the part of the bar is clamped by the chuck 11, so that the surface of the bar has clamping marks and the bar cannot be cut by the cutting tool, therefore, in order to save materials, the clamping position of the chuck 11 is arranged on the chuck 11 when the bar is subjected to rough machining and finish machining, and the situation that the bar subjected to surface treatment is clamped by the subsequent process is reduced.

Referring to fig. 3 and 3, when the chuck 11 clamps the bar, it is necessary to control a clamping position so that the chuck 11 does not clamp the bar and affect the cutting of the bar. In order to prevent the chuck 11 from clamping the bar, the bar inclines, a support plate 16 is arranged in the case 1, the support plate 16 is fixedly connected with the moving plate 13 through a support plate 17, the arrangement position is located on one side of the chuck 11, which is far away from the second hydraulic cylinder 9, the arrangement height of the support plate 16 is the same as that of the receiving groove 8, and the feed plate 5 is in contact with the chuck 11, so that when the second hydraulic cylinder 9 pushes the bar in the receiving groove 8, the bar is separated from the receiving groove 8, one end of the bar passes through the center of the chuck 11 and is in contact with the upper surface of the support plate 16, the support plate 16 supports the bar, and then the staff adjusts the other end of the chuck 11 to clamp the bar, so that the chuck 11 and the support plate 16 support the bar together. The blade 16 is displaced from the tool holder 15, and the tool holder 15 is prevented from interfering with the blade 16 when the moving plate 13 moves forward.

In addition, when finishing the surface cutting of the bar material, the worker needs to take off and collect the bar material from the chuck 11, so that the worker can collect a plurality of bar materials at one time for the convenience of collecting the bar material and reducing the working strength of the worker, referring to fig. 4 and 5, a support 18 is provided on the moving plate 13, the support 18 is fixedly connected to the moving plate 13, the support plate 16 passes through the support 18, a distribution ring 19 is fixedly connected to the support 18, and the center of the distribution ring 19 is aligned with the center of the chuck 11. The arrangement ring 19 is fixedly connected with a plurality of clamping cylinders 20, the plurality of clamping cylinders 20 are arranged on the inner annular surface of the arrangement ring 19, the plurality of clamping cylinders 20 are arranged on the arrangement ring 19 at equal intervals along the center of the arrangement ring 19, the plurality of clamping cylinders 20 are arranged in the same vertical plane, and the ejection direction of piston rods of the plurality of clamping cylinders 20 faces the center of the arrangement ring 19. A rubber clamping block 21 is mounted on the piston rod. The arrangement ring 19 is arranged between the tool holder 15 and the chuck 11.

When the second hydraulic cylinder 9 pushes the bar material to enable the bar material to pass through the center of the chuck 11, an operator tightens the chuck 11 to enable the chuck 11 to clamp one end of the bar material, and when the chuck 11 clamps the bar material, the other end of the bar material passes through the center of the arrangement ring 19, then the cutting tool cuts the bar material, the cutting area of the cutting tool is larger and larger along with the movement of the moving plate 13, after the cutting is finished, the arrangement ring 19 moves to a position close to the chuck 11 along with the moving plate 13, then the piston rods of the clamping cylinders 20 are ejected, the bar material passing through the center of the arrangement ring 19 is clamped after the piston rods of the clamping cylinders 20 are ejected, and in the process that the moving plate 13 returns to the original position, the clamping disc 11 is loosened by the operator, the clamping of the chuck 11 is released, the bar material is clamped again by the clamping cylinders 20, and the arrangement ring 19 drives the bar material to be separated from the chuck 11. When a new bar is installed, the new bar pushes the bar clamped by the arrangement ring 19, so that the clamping cylinder 20 is reset at the moment, and the processed bar falls on the moving plate 13 and is temporarily stored on the moving plate 13. When the processed bars need to be taken out, the working personnel only need to open the box door and directly hold out a plurality of bars from the movable plate 13 at the box door, so that the times of taking the bars by the working personnel are reduced, and the working intensity of the working personnel is reduced.

Referring to fig. 3 and 6, the temporary storage mechanism includes that fixed connection holds case 22 on the movable plate 13, holds and has placed baffle 23 on the case 22, runs through on the baffle 23 and has seted up through-hole 24, there is the clearance between the bottom of the case of baffle 23 and the case that holds case 22, when cutting the rod, the rod that the cutting finishes falls in holding case 22, let the rod keep in holding case 22, set up baffle 23 and through-hole 24 moreover, can let the cutting bits that fall in holding case 22 pass through-hole 24 and fall on the downside of baffle 23.

The implementation principle of the surface processing device in the embodiment of the application is as follows: through pay-off box 2 and delivery sheet 5 together with first pneumatic cylinder 6 and second pneumatic cylinder 9 with the continuous transport to chuck 11 department of rod, staff's adjustment chuck 11 presss from both sides the rod tightly, then the staff cuts the rod of chuck 11 centre gripping, wherein, through automatic transport rod, the staff only needs to tighten chuck 11 just can accomplish arranging of rod fast, conveniently handles and mass production processing axle spare the surface of rod, has improved production efficiency.

The embodiment of the application also discloses a processing technology of the motor shaft of the soymilk machine, which refers to fig. 7 and 8 and comprises the following steps:

s1, selecting a bar;

and selecting 45 steel bars according to the diameter size.

S2, surface treatment;

and (3) processing the surface of the bar by using a surface processing device to cut the defects on the surface of the bar.

S3, milling and rough machining:

firstly, a large amount of excess materials of the bar subjected to surface treatment are cut off by milling, and the bar is processed into blanks in a mode of dividing into different amounts, and a small amount of excess materials are left.

S4, heat treatment:

placing the rough blank subjected to the milling rough machining process into a heating furnace, slowly heating the rough blank to 500 ℃ after a period of time, then heating the rough blank to about 650 ℃ at a heating rate of 100 ℃ per hour, keeping the temperature difference of each area in the heating process in the furnace to be not more than 40 ℃, preserving heat in the furnace for 3-5 hours, and finally cooling the rough blank to 200 ℃ in a closed furnace at a cooling rate of 50 ℃/hour; thereby completing the heat treatment process of the bar.

S5, forming and grinding:

the blank is clamped on a grinding fixture of a grinding machine and ground by fixing or constantly changing the position to obtain the required shape.

S6, wire cutting processing:

and (3) placing the rod material subjected to grinding forming on a wire cut electric discharge machine for wire cutting processing, and continuously performing pulse discharge on the wire cut electric discharge machine to cut the motor shaft with the shape and the size required by the blank.

S7, forming and milling:

the bar material after the wire cutting process is placed on a common milling machine, the rotation motion of the milling cutter is the main motion, the movement of the milling cutter of the motor shaft is the feed motion, and the required shape and size are processed on the surface of a blank.

S8, numerical control turning:

and (3) placing the bar subjected to the milling process on a numerical control lathe for turning, so that the shape and size of the motor shaft are further improved.

S9, numerical control milling:

and finally processing the motor shaft by numerical control milling, and further finishing the processing procedure which can not be carried out by common milling, so that the motor shaft can meet all shape requirements and size.

S10, electric spark forming processing: and etching the surface of the motor shaft through pulse discharge, and finishing final machining on places which cannot be milled by a common lathe and a milling machine.

S11, size inspection:

and (4) measuring the size of the processed motor shaft, and storing and delivering the motor shaft to leave a factory when all data meet the required requirements.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (5)

1. The utility model provides a surface machining processing apparatus of soybean milk machine motor shaft which characterized in that: the bar cutting machine comprises a case (1), a chuck (11) arranged in the case (1), a driving motor (10) for driving the chuck (11) to rotate, a cutting tool for cutting a bar, a tool rest (15) used as a mounting position of the cutting tool, a moving plate (13) used as a mounting position of the tool rest (15), a third hydraulic cylinder (14) for pushing the tool rest (15) to move towards the direction of the chuck (11) and a bar conveying mechanism for conveying the bar into the chuck (11); the case is provided with a case door, the case door faces the moving plate (13), and the moving direction of the moving plate (13) and the case door are positioned on the same straight line;

the bar conveying mechanism comprises a feeding box (2) used for containing bars and a second hydraulic cylinder (9) used for pushing the bars in the feeding box (2) to the center of a chuck (11) and clamped by the chuck (11), a feeding port (3) used for discharging the bars in the feeding box (2) is formed in the feeding box (2), and the bars discharged through the feeding port (3) are aligned with the ejection direction of a piston rod of the second hydraulic cylinder (9);

when the driving motor (10) drives the chuck (11) to rotate, the arrangement position of the driving motor (10) is staggered with the center of the chuck (11);

the movable plate (13) is fixedly connected with a bracket (18), the bracket (18) is fixedly connected with an arrangement ring (19), and the center of the arrangement ring (19) is aligned with the center of the chuck (11);

the arrangement ring (19) is fixedly connected with a plurality of clamping cylinders (20), and the ejection directions of piston rods of the clamping cylinders (20) face to the center of the arrangement ring (19); an arrangement ring (19) is arranged between the tool holder (15) and the chuck (11);

the bar conveying mechanism also comprises a feeding plate (5) which is arranged in the case (1) and connected with the lower side of the feeding box (2) in a sliding manner, and a first hydraulic cylinder (6) which is fixedly connected in the case (1) and pushes the feeding plate (5); the feeding plate (5) is horizontally arranged, and a receiving groove (8) is formed in the upper surface of the feeding plate (5);

a containing box (22) is fixedly connected to the moving plate (13);

a supporting plate (16) is arranged in the case (1), the supporting plate (16) is fixed on the moving plate (13) through a supporting plate (17), the arrangement position of the supporting plate is located on one side, away from the second hydraulic cylinder (9), of the chuck (11), the arrangement height of the supporting plate (16) is the same as that of the receiving groove (8), and the feeding plate (5) is in contact with the chuck (11);

a partition plate (23) is placed on the containing box (22), a through hole (24) is formed in the partition plate (23) in a penetrating mode, and a gap is formed between the partition plate (23) and the bottom of the containing box (22);

the driving motor (10) drives the chuck (11) to rotate in a belt transmission mode, and a wheel groove is formed in the chuck (11).

2. The surface processing device of the motor shaft of the soymilk machine according to claim 1, which is characterized in that: the box bottom of the feeding box (2) is formed by fixedly connecting a horizontal plane and an inclined plane, and the box opening of the feeding box (2) is arranged on the upper side of the inclined plane.

3. The surface processing device of the motor shaft of the soymilk machine according to claim 1, which is characterized in that: the upper surface of the case (1) is provided with a holding tank (4) for holding the feeding box (2) in a penetrating way.

4. The surface processing device of the motor shaft of the soymilk machine according to claim 1, which is characterized in that: an exposure groove (12) exposing the chuck (11) and the cutting tool is formed on the upper surface of the case (1).

5. A soybean milk machine motor shaft processing technology applying the surface processing device of any one of claims 1 to 4 comprises the following steps:

s1, selecting a bar;

selecting 45 steel bars according to the diameter size;

s2, surface treatment;

processing the surface of the bar by using a surface processing device to cut the defects on the surface of the bar;

s3, milling and rough machining:

firstly, a large amount of excess materials of a bar subjected to surface treatment are cut off by milling, the bar is processed into blanks in a mode of dividing the bar into different amounts, and a small amount of excess materials are left;

s4, heat treatment:

placing the rough blank subjected to the milling rough machining process into a heating furnace, slowly heating to 500 ℃ after a period of time, then heating to 650 ℃ at a heating rate of 100 ℃ per hour, keeping the temperature difference of each area in the heating process in the furnace to be not more than 40 ℃, preserving heat in the furnace for 3-5 hours, and finally cooling to 200 ℃ in a closed furnace at a cooling rate of 50 ℃/hour; thereby completing the heat treatment process of the bar;

s5, forming and grinding:

clamping the bar subjected to heat treatment on a grinding clamp of a grinding machine, and grinding by fixing or continuously changing the position to obtain a required shape;

s6, wire cutting processing:

placing the bar material after grinding on a wire cut electric discharge machine for wire cutting, and continuously performing pulse discharge on the wire cut electric discharge machine to cut out a motor shaft with the shape and the size required by a blank;

s7, forming and milling:

placing the bar subjected to the wire cutting process on a common milling machine, and processing the bar into a required shape and size on the surface of a blank by taking the rotary motion of a milling cutter as the main motion and the movement of the milling cutter of a motor shaft as the feed motion;

s8, numerical control turning:

the bar subjected to the milling process is placed on a numerical control lathe for turning, so that the shape and size of the required motor shaft are further improved;

s9, numerical control milling:

the motor shaft is finally processed through numerical control milling, and the processing procedures which cannot be performed by common milling are further completed, so that the motor shaft can meet all shape requirements and size;

s10, electric spark forming processing: etching the surface of the motor shaft through pulse discharge, and finishing final machining on places which cannot be milled by a common lathe and a milling machine;

s11, size inspection:

and (4) measuring the size of the processed motor shaft, and storing and delivering the motor shaft to leave a factory when all data meet the required requirements.

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